PT-2017-19141 · Uclinux+1 · Uclibc+1

Benjin Liu · Published 2017-06-16 · Updated 2019-10-03 · CVE-2017-9729

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions uClibc version 0.9.33.2

Description The issue is related to stack exhaustion due to uncontrolled recursion in the check dst limits calc pos 1 function, located in misc/regex/regexec.c, when the software processes a crafted regular expression.

Recommendations For uClibc version 0.9.33.2, consider avoiding the use of crafted regular expressions until a patch is available. As a temporary workaround, restrict the use of the check dst limits calc pos 1 function to minimize the risk of exploitation.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2017-9729

Affected Products

Debian

Uclibc

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2017-9729 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-9729 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-9729 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-9729 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/06/16/4 · Note